Xavier Vello
Senior Data Engineer
Greater Paris Metropolitan Region France
Summary
🤩
Rockstar🎓
Top SchoolXavier Vello is a Senior Data Engineer with 17 years of experience building reliable, scalable backend and data systems across manufacturing and software industries, currently at PostHog in Greater Paris. He blends deep distributed-systems and container expertise from Datadog with practical data engineering and production delivery—leading launches like a Transport Management System processing thousands of packages daily. A generalist who values rapid learning and knowledge-sharing, he frequently delivers internal trainings and conference talks and publishes decks on his website. His open-source contributions touch prominent projects such as Datadog and PostHog, improving ingestion, observability, and container integrations. Pragmatic and mentoring-focused, Xavier excels at enabling teams to ship safely by providing tooling, procedures and coaching.
18 years of coding experience
11 years of employment as a software developer
Ingénieur Centralien, Ingénieur Centralien at CentraleSupélec
English, French, Spanish
Github Skills (45)
kubernetes10
docker10
postgresql10
python10
scripting10
configuration-management10
bash10
environment-variables10
containerization10
dockers10
kubernetes-pods10
datadog10
ingest10
rust10
api-design9
Programming languages (20)
Github contributions (5)
DataDog/docker-dd-agent
Apr 2017 - Jan 2019
Datadog Agent Dockerfile for Trusted Builds.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:1 release, 75 commits, 37 PRs in 1 year 9 months
Contributions summary:Xavier primarily focused on modifying and enhancing the Datadog Agent Dockerfile and associated entrypoint scripts. Their contributions involved adding new environment variable bindings, especially related to Kubernetes, service discovery, and logging, to improve the agent's configuration flexibility. They also addressed critical issues related to Supervisor's socket location, and updated configurations for dogstatsd, ensuring proper agent behavior and improved integration with external services.
datadogdockerfile
DataDog/integrations-core
Mar 2017 - Apr 2019
Core integrations of the Datadog Agent
Role in this project:Backend Developer
Backend DeveloperContributions:231 commits, 169 PRs, 384 pushes in 2 years
Contributions summary:Xavier contributed to the `datadog/integrations-core` repository, which focuses on core integrations for the Datadog Agent. Their work involved modifying the Docker daemon check to tag network metrics with the virtual network name, enhancing the test suite for Docker daemon metrics, and fixing parsing errors for disk metrics. Further contributions include adding Nomad and Kubernetes support, including tag retrieval and image name fixes, indicating focus on containerized environments and infrastructure monitoring.
datadogdatadog-agentddintegrations
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